<p>I got heaps of Ts for the second part =/</p>
<p>For the density one, is it 3.0 g/ml or 3.00? I am really confused =/</p>
<p>3.0 and 3.00 are the same thing lol who cares</p>
<p>It’s sig figs. It’s 3.0, the answer for 3.00 is wrong.</p>
<p>Was that a T/F or a multiple choice question?</p>
<p>i just chose 3.0 because it was shorter… I think sig figs are stupid</p>
<p>It was a multiple choice question, if you are referring to my statement.</p>
<p>I think there was a TT for H2O has a higher boiling point than H2S</p>
<p>yea i got that too. </p>
<p>H2O has hydro-bonding whereas H2S; Also, h2s happens to have a higher MM.</p>
<p>TAT~~I chose 3.00 because when you are reading the cylinder dont you have to guess one more decimal number like 9.20 or sth? Idk</p>
<p>I got that to becuase H2S has a higher MM that’s all I thought about</p>
<p>I think 3.0 was the answer not 3.00.</p>
<p>You get 3 sig figs for volume from reading the graduated cylinder and subtracting to find the difference, but when you divide the mass (which was in 2 sig figs) by the volume (3 sig figs), you use 2 sig figs in division.</p>
<p>i got 3.0 as well</p>
<p>3.0 </p>
<p>Difference in volume is 2 sig fig. Mass is 2 sig fig. Dividing 2 sig fig by 2 sig fig yields 2 sig fig.</p>
<p>@hffighter
when there is a 3 sig fig number and a 2 sig fig number why do you choose 2 when it comes to the result?</p>
<p>NVM…so far omit 1 miss 3 …is it still possible to get an 800 TAT？</p>
<p>I chose 3.0 as well. </p>
<p>@Skycatter: You have to use sig-fig rules. They are on wikipedia if you are really that interested.</p>
<p>Wasn’t there a true or false question involving La Chatelier’s princeple.</p>
<p>It said something like: </p>
<p>I. If the pressure was increased the reaction above would shift left.
II. There are fewer moles of gas on the left, thus the reaction shifts left to relieve this stress.</p>
<p>I think I had TTCE</p>
<p>^Oh, that one. The MgCO3 (s)—>MgO (s) + CO2 (g)</p>
<p>I had T T only. Statement II basically said that a shift to left reduces moles of gas which reduces volume which leads to increased pressure. However, the reason the reaction shifts to the left is because a decrease in volume favors the side with fewer gas particles, not because of what II said.</p>
<p>didn’t II basically say that a decrease in volume favors the side with fewer gas particles.</p>
<p>feeling good, I haven’t got any wrong as far as I know so far</p>
<p>I think the KCl one was precipitate
The diatomic one was TT but not CE
density was 3.0
salt water one was FF
I got 3 or 4 CE
hydrogen accepting quanta thing was CE I think
NaCl one was volumetric flask
least precise measurement is a graduated cylinder
and for balancing, I got a lot of ones</p>
<p>I found the test really easy and short, it took me like 35 minutes to finish</p>
<p>
</p>
<p>Not quite. At least, not how I interpreted it. That statement was really long and complicated, so it might have been CE; I’m not sure.</p>
<p>II just seemed like a restatement of Le Chateliers.</p>